Irrigation spike



FIG. 1 is a perspective view of an irrigation spike showing our new design;

FIG. 2 is a side elevational view of thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a perspective view thereof shown in a typical environment including a garden hose;

FIG. 7 is a side elevational view thereof; and,

FIG. 8 is a front elevational view thereof.

The broken line showing of a garden hose in FIGS. 6-8 is included for the purpose of illustrating and forms no part of the claimed design. 

CLAIM The ornamental design for an irrigation spike, as shown and described. 